Crossing-signal.



o. H. wHiTMAN. CROSSING slGNAL.

APPLICATION FILED ,IULY 20, |914.

Patented Nov. 2, MM5

l l l l vLionello.

,7 all l'whom t 'may concer/1i.; Be it' knowntliat l, OSCAR en oir;

' osoen is. winni/ian, or Los finestre, cani'roniiia.

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Specification of Letters Patent.

a' citizen of the United States, residing at L Los' Angeles, inthe county of Los Angeles the type placedat the'` intersection of streets vfor the purpose of controlling the movementof trafiio, and one of the-main objects of inv vinvention is to provide a signal of the char# acter described of' vsimple forni and, conand Stateof California, have invented a 1new and useful Crossing-Signal, of which the 'following is a specification.

`'My invention relates to `signal displays of struction, v.whiolfi warns the traffic by a simultaneous audible and visible signal. v

which are for' Referring toA the drawings,

illustrative purposes only: Figure 1 is aside partly i insection,l vthe signal. 1 designates ahead to which is secured,"

'by means of bolts 2,' four downwardly deelevatiompartly in section, of a signal ein-- bodying a forni of my invention. Fig. 2 is a plan view of 'the device shown in Fig. 1.

` vFina-3 is an enlarged sectional .view online n n. a

air-.r3 Fig. 1.

y Fig. 4 is a sectional plan view4 on the line @c4-. 5124 Fig.- 1. Fig. a sectional plan view on line .eL-.r5- F-ig. l.

F ig. 6 is an inverted-sectional .plan view of.- .the piston] Fig. -7 is a perspectivel view,

of theupper portion of pending legs 3 having an offset `portion "terminating in a downwardly and outwardly extending foot 5, each foot '5 being provided with. a bolt 6, to `the lowerend of' underl face with downwardlyprojecting7 prongs or Vteeth 8 'adapted to rest .on the `surface of the street. The bolts 6 arev each provided with a head2)v so that the height of the respective eeti above the street level f may be 4'regulated '-byturning theV respective- 'f lbolts, and by'suchfadjustment the signal may be 'kept invertical-position, the parte' heretofore described constituting the base orV support for the signal. To the underside of the oisetfportion 4 of the respective legs 8 are seeiired,lby means of rivets 10, cross plates'll. Centrally mounted on the plates l11 and secured thereto by means of a suitable bolt 12 is a cylinder or dashpot 13, the

upper'end of which is open to receive a piston 14 provided with suitable 'packing rings 15.

Mounted on the upper face of the pston 14 isa Whistle 16 connected by means of a passage 17 tlitrpugh the piston le with the into the respective 4slots in the upper end 'in common use.

. thereto at its reiterates-nein e', asia.

Application filed July 20, 1914; Serial No. 852,107.

' space between thev piston 1nd thelclosed .end v of the vcylinder 13, a. 'simi ai passage 18 be- .ing provided through the piston 14 whichV connects the space between the piston and 50 the closed end of the cylinder with an intake I valve 19 on the upper end or' the piston .0p-

Apositelv disposed to the whistle 16 on the piston. The pistonill is provided with a.- ciic'ular flange 2l having 'downwardly Ade- (35 pending 'from the underside thereof two op-v positely. disposed lugs 22 provided with cam faces adapted to rideover lugs on a flange I 2li esltendingoutwardly from 'the cylinder der are six in number, single lugs 25 beingv oppositely. disposed on one portion of the. i'ange 24g-and double lugs 26, or lugs ar'- ranged impairs', are arranged intermediatethe first naniedflugs 25, the respect-ive pairs. of lugs 2G being oppositely disposed toeachother. The upper end of the Ipiston Ilei-ter- .'rnin'ates in a boda 30 in which i's secured, by pieans ot a'pin 3l, the lower end of :i shadlft i132. The shalt 32 is slotted,`as. indicated at 38to receive the lower `end of. a shaft 34.

krflielower :end ot' the shaftl is cut-away to form fourrbs 35 which slidably extend l f oi' the shaft 32. A coil compression spring. 85 l -BGisprovided about the shaft' 32 andthe lower endoil vthe-shaft 34. The spring'f'l abuts with itsupoei'iendy againstthe under'- face of the head 1 and with its lower end againstv the'iipper end of' the boss 30, thev 90 spring 86 tending to elast-ica'lly hold the pisy lton at the end of its stroke in` the cylinder 13. -Thesliait 3i extendstliroiigh 'and is `lrotatably mounted in the head l, acollar 37 being secured to -tlie shaft above tlieliead 1 'gliand the shaft 34+ beinglnovided with avoircular flange v3dr whichzfits Within a" recess in the vlower end of the head' The upper 4end of the 'shaft 34 is connected by means of a coupling 38 withthe lower end of a pipe 100 vor standard A39, sa'idpipe 39 being provided. at'its upper end with a spring controlled alarm bell of any of the vwelllnownforms i JLhe' lugs on the ange 2% of the cylinassente l. A crossing signal comprising a base,

a standard rotatably mounted in said base, a. display secured to the upper end or" said standard, a cylinder, a piston'in said cylinder, a Whistle, and means whereby said piston is reeiproeated in` said cylinder bythe rotation of said standard to operate said whistle.

2. A crossing signal comprising a base, a standard rotatably modnted in said base, display means on the upper end of said standard, a cylinder supported in said base, a piston in said cylinder, means for rotatably connecting said piston to said standard, means for raising said piston When said standard'is rotated, means for elastically holding said piston at the end of its stroke in said cylinder, and a Whistle adapted to be operated by the exhaust from said cylinder.

3. A crossing signal comprising a base, a standard rotatably mounted in said base, display means on the upper end of said standard, a cylinder supported in said base, a piston in said cylinder, means for rotatably connecting said piston to said standard, a plurality of lugs on said cylinder, lugs on said piston adapted to ride over the lugs on said cylinder to raise the piston,

elast-'1e means or returning said piston from its raised position, en intake valve for said cylinder, and a Whistle adapted to be op erated by' the exhaust from said cylinder.

al. A crossing signe] com )rising a base, a standard rotatably ino unte in said base, a display secured to the top of said standard, a sleeve on. said standard, a display on said sleeve, means whereby said standard and 'said sleeve may be moved independent of each other, means whereby said standard and said sleeve may be moved siinultauoe-v ously, a Whistle, and means whereby said Whistle is operated by the rotation of said standard.

5. A verossing signal comprising a base, a standard rotatably mounted in said base, a pair of oppositely disposed arms connected to the upper end of said standard, a sleeve4 'on said standard, a pair of oppositely disposed arms on the upper end of said sleeve l in the same plane as said first named arms, and means whereby said sleeve may be rotated on said standard to bring the arms on saii sleeve against the arms on said standar f In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 14th day of July, 1914.

OSCAR H. WHTMANL ln presence of-u FRED A. MANSFIELD,

FORD W. HARRIS. 

